<template>
    <div>
             <!-- 面包屑导航区域 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>
       </el-breadcrumb>
        <!-- 卡片视图区 -->
       <el-card>
              <!--2. 为ECharts准备一个具备大小（宽高）的Dom -->
              <div id="main" style="width: 750px;height:400px;"></div>
       </el-card>
    </div>
</template>
<script>
// 1.导入 echarts
import * as echarts from "echarts";
import _ from 'lodash'
export default {
  data() {
    return {
        // 需要合并的数据
      options: {
        title: {
          text: "用户来源"
        },
        tooltip: {
          trigger: "axis",
          axisPointer: {
            type: "cross",
            label: {
              backgroundColor: "#E9EEF3"
            }
          }
        },
        grid: {
          left: "3%",
          right: "4%",
          bottom: "3%",
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: "value"
          }
        ]
      }
    };
  },
  created() {},
  // 此时，顶面上的元素，已经被渲染完毕了
  mounted() {
    // 3.基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById("main"));
    this.axios.get("reports/type/1").then(result => {
      if (result.data.meta.status !== 200)
        return this.$message.error("获取折线图数据失败！");
      console.log(result.data.data);
      
      // 4.准备数据和配置项
    const res=  _.merge(result.data.data,this.options)
     // 5.展示数据
    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(res);
    });
    
   
  }
};
</script>
<style scoped>
</style>

